The harness is fully adjustable so no worries about it fitting, it even fits on hubby. You can technically use any strap on dildo with it as it has several different o ring sizes so I don't see why you can't get a beaded one.

I like to take hubby doggy style, gives me more control and I find its a lot comfier for me plus he can control the depth and speed at first

Try the basix 7" slim dildo its tapered so easy to use and comfortable we used it with love honey beginners harness that comes with a 5" dildo and it fitted in there well and the harness is easy to fit and great best one we got.

if you are trying this for the first time i would say try the position that you are both on your side and she is behind you that way she can bead you over forwards or backwards and you both do not have to be strong to lift the other and support them .

we also start with this position and then move on to other ones later with my wife on top or myself which one we wish to do .

Just take it easy and try to find the position that you both find the best ,talking is the key find out what you both wish to happen and to find out what works for you both

I have purchased the Vac Loc system that allows you to interchange dildos. I also upgraded and bought a different harness as we. We have a couple of the dildos including the rather large one but the one that I am posting here is really nice. It's a good eight inch so you can tell you are being penetrated. I really like the feel of the material as well. It is soft and pliable but able to retain rigidity when applied to the harness.

As for positions taking you from behind whether on your knees or stood is good and allows easy penetration, especially if your wife puts high heels on as it does make my wife just that bit taller and lets her enter me easily. If you are on your back then we have found that you need to raise your butt up away from the bed and to be supported. This allows easier entry as the harness does sit slightly higher in terms of body position than a penis. http://www.lovehoney.co.uk/product.cfm?p=12135

I can recomend this it's got 19 reviews all 5 star one of the reviews is ours. As for the dildo personally we love the silicone ones there worth the extra money and will remain in perfect condition if stored correctly for years the first silicone dildo we got for pegging is now 6 years old but still in mint condition (vixen Leo )

The first one we got was the Red Rider and boy did we have fun with it fantastic seeing the wife all dressed up in Pvc catsuit and the Red Rider strapped to her approaching me whilst strapped down on the bed.After a bit of foreplay with fingers and plenty of lube she slowly entered me all the way boy was it a good feeling and what a orgasm i had never cum as much in my life.Have fun and let us know how much you enjoyed it